Quick Answer
Base64 encoding converts binary data to ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). Useful for embedding data in text formats like JSON or HTML.
Quick Template
Use the full Base64 Encoder/Decoder
This variant is a fast preset. Open the full tool to fine-tune inputs, explore more options, and share the result.
About Base64 Encoder Online
How to Use Base64 Converter
- Enter text to encode or Base64 string to decode
- Click ‘Encode’ or ‘Decode’ button
- Copy the result with one click
- Works entirely in your browser
Base64 Alphabet
The Base64 alphabet uses 64 characters:
- A-Z (26 characters)
- a-z (26 characters)
- 0-9 (10 characters)
-
- and / (2 characters)
- = (padding character)
Example
Text: Hello World
Base64: SGVsbG8gV29ybGQ=
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